Low-percentage acrylamide gels are also used to separate

A) Large DNA

B) Large proteins

C) Large RNA

D) All DNA, Proteins, RNA

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#Question id: 9201

#Unit 9. Diversity of Life Forms

Erwin and Scott used an insecticidal fog to knock down insects from the top section of a L. seemannii tree. The researchers identified over 900 species of beetles among the individuals that fell. Erwin also projected that this entire tree from top to bottom is host to about 600 arthropod species that are unique to this tree species and not found on any other tree species. There are approximately 50,000 species of tropical trees. Although it could not be entirely accurate, what would be the best way to estimate the total number of arthropod species?

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#Question id: 19689

#Unit 13. Methods in Biology

Which of the following statements are true about the PR interval?

a. It includes the P wave and the PR segment

b. The beginning of electrical excitation of the atria and the beginning of excitation of the ventricles.

c. Conduction time through the AV node.

d. P wave + PR segment + QRS Complex

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#Question id: 2926

#Unit 2. Cellular Organization

Given below are some of the Mechanisms, checkpoint proteins and their functions. 

Which of the following match is correct?

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#Question id: 20967

#Unit 12. Applied Biology

Transgenic models exist for ________ disease.

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#Question id: 26879

#Unit 10. Ecological Principles

All characteristics of k-selected species, except